Class: Churn::SourceControl

Inherits:
Object
  • Object
show all
Defined in:
lib/churn/source_control.rb

Overview

Base clase for analyzing various SCM systems like git, HG, and SVN

Direct Known Subclasses

BzrAnalyzer, GitAnalyzer, HgAnalyzer, SvnAnalyzer

Instance Method Summary collapse

Constructor Details

#initialize(start_date = nil) ⇒ SourceControl

Returns a new instance of SourceControl.



5
6
7
 
# File 'lib/churn/source_control.rb', line 5

def initialize(start_date=nil)
  @start_date = start_date
end

Instance Method Details

#get_updated_files_change_info(revision, revisions) ⇒ Object 



9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
# File 'lib/churn/source_control.rb', line 9

def get_updated_files_change_info(revision, revisions)
  updated     = {}
  logs        = get_updated_files_from_log(revision, revisions)
  recent_file = nil
  logs.each do |line|
    if line.match(/^---/) || line.match(/^\+\+\+/)
      # Remove the --- a/ and +++ b/ if present
      recent_file = get_recent_file(line)
      updated[recent_file] = [] unless updated.include?(recent_file)
    elsif line.match(/^@@/)
      # Now add the added/removed ranges for the line
      removed_range = get_changed_range(line, '-')
      added_range   = get_changed_range(line, '\+')
      updated[recent_file] << removed_range
      updated[recent_file] << added_range
    else
      puts line.match(/^---/)
      raise "diff lines that don't match the two patterns aren't expected: '#{line}'"
    end
  end
  updated
end

#get_updated_files_from_log(revision, revisions) ⇒ Object 



32
33
34
35
36
37
38
39
40
41
 
# File 'lib/churn/source_control.rb', line 32

def get_updated_files_from_log(revision, revisions)
  current_index = revisions.index(revision)
  previous_index = current_index+1
  previous_revision = revisions[previous_index] unless revisions.length < previous_index
  if revision && previous_revision
    get_diff(revision, previous_revision)
  else
    []
  end
end